Allen Bradley 1769-L35E CompactLogix Ethernet Processor Controller

Product Overview

The Allen Bradley 1769-L35E serves as a high-performance central processing unit within the CompactLogix system. It manages complex control logic and coordinates seamless communication across industrial networks. By integrating a native EtherNet/IP port, this controller facilitates real-time data exchange with HMIs, other PLCs, and distributed I/O without requiring additional communication modules. Its compact form factor makes it the primary choice for mid-range applications that demand high-speed processing and networked connectivity within a limited footprint.

Technical Specifications

Engineering Advantages

• Integrated EtherNet/IP Capabilities: The 1769-L35E eliminates the cost of separate network cards. The built-in port supports messaging, producer/consumer tags, and distributed I/O, allowing engineers to standardize communication on a single industrial Ethernet backbone.

• Massive I/O Scalability: This processor handles up to 30 local 1769 I/O modules across three expansion banks. This scalability solves the challenge of growing system requirements, allowing for future I/O expansion without replacing the core processor.

• Robust Data Preservation: The controller utilizes 64/128 MB of Flash memory via CompactFlash cards. This ensures the user program and tag data remain secure during long-term power outages, preventing costly downtime and logic loss in remote or unstable environments.

• Dual-Voltage Backplane Efficiency: By utilizing both 5V and 24V DC from the backplane, the processor optimizes power distribution across the 1769 bus. This design minimizes heat generation within the rack, extending the operational life of adjacent I/O modules.

• Small Footprint DIN Rail Mounting: The modular, fanless design snaps directly onto standard 35mm DIN rails. This reduces enclosure costs and simplifies installation in high-density control cabinets where space is at a premium.

FAQs

• Is this 1769-L35E unit 100% Brand New?

  Yes. We supply this processor as 100% Brand New in original factory packaging. Each unit includes the factory seal to ensure authenticity and peak performance for your machine control system.

• How many Ethernet nodes does the 1769-L35E support?

  The 1769-L35E typically supports up to 32 Ethernet/IP nodes. For systems requiring higher node counts or motion control, consider upgrading to the CompactLogix 5370 or 5380 series.

• Does this processor require a separate power supply?

  The processor draws power from a 1769-PA2, PB2, PA4, or PB4 power supply module. You must place the power supply within the distance rating specified for the processor (usually within 4 modules) to ensure stable operation.

• Can I use the RS-232 port and Ethernet port simultaneously?

  Yes. The 1769-L35E supports concurrent communication across both ports. You can use the RS-232 port for point-to-point connections with legacy devices or modems while maintaining the primary network uplink via Ethernet.